#include "atomic_op_asm.h"

ENTRY_NP(_atomic_nand_8)
	mov	x4, x0
1:	ldxrb	w0, [x4]		/* load old value (to be returned) */
	mvn	w3, w0			/* complement source */
	and	w3, w3, w1		/* calculate new value */
	stxrb	w2, w3, [x4]		/* try to store */
	cbnz	w2, 1b			/*   succeed? no, try again */
	dmb	st
	ret				/* return old value */
END(_atomic_nand_8)

ATOMIC_OP_ALIAS(atomic_nand_8,_atomic_nand_8)
ATOMIC_OP_ALIAS(atomic_nand_uchar,_atomic_nand_8)
STRONG_ALIAS(__sync_fetch_and_nand_1,_atomic_nand_8)
STRONG_ALIAS(_atomic_nand_uchar,_atomic_nand_8)

ENTRY_NP(_atomic_nand_8_nv)
	mov	x4, x0			/* need r0 for return value */
1:	ldxrb	w0, [x4]		/* load old value */
	mvn	w0, w0			/* complement source */
	and	w0, w0, w1		/* calculate new value (return value) */
	stxrb	w2, w0, [x4]		/* try to store */
	cbnz	w2, 1b			/*   succeed? no, try again? */
	dmb	st
	ret				/* return new value */
END(_atomic_nand_8_nv)

ATOMIC_OP_ALIAS(atomic_nand_8_nv,_atomic_nand_8_nv)
ATOMIC_OP_ALIAS(atomic_nand_uchar_nv,_atomic_nand_8_nv)
STRONG_ALIAS(__sync_nand_and_fetch_1,_atomic_nand_8_nv)
STRONG_ALIAS(_atomic_nand_uchar_nv,_atomic_nand_8_nv)
